package com.itheima.service.store.impl;

import com.github.pagehelper.PageHelper;
import com.github.pagehelper.PageInfo;
import com.itheima.dao.store.QuestionMapper;
import com.itheima.domain.store.Question;
import com.itheima.service.store.QuestionService;
import com.itheima.utils.MysqlUtils;
import org.apache.ibatis.session.SqlSession;
import org.apache.poi.ss.usermodel.*;
import org.apache.poi.ss.util.CellRangeAddress;
import org.apache.poi.xssf.usermodel.XSSFWorkbook;

import java.io.*;
import java.util.ArrayList;
import java.util.List;

public class QuestionServiceImpl implements QuestionService {
    @Override
    public void addQuestion(Question question) {
        SqlSession sqlSession = MysqlUtils.getSqlSession();
        QuestionMapper questionMapper = sqlSession.getMapper(QuestionMapper.class);
        questionMapper.addQuestion(question);
        sqlSession.close();
    }

    @Override
    public void deleteQuestion(String id) {
        SqlSession sqlSession = MysqlUtils.getSqlSession();
        QuestionMapper questionMapper = sqlSession.getMapper(QuestionMapper.class);
        questionMapper.deleteQuestion(id);
        sqlSession.close();
    }

    // 修改问题
    @Override
    public void updateQuestion(Question question) {
        SqlSession sqlSession = MysqlUtils.getSqlSession();
        QuestionMapper questionMapper = sqlSession.getMapper(QuestionMapper.class);
        System.out.println("ccccccccccccccccc:"+question);
        questionMapper.updateQuestion(question);
        sqlSession.close();
    }

    @Override
    public List<Question> findAll() {
        SqlSession sqlSession = MysqlUtils.getSqlSession();
        QuestionMapper questionMapper = sqlSession.getMapper(QuestionMapper.class);
        List<Question> questionList = questionMapper.findAll();
        sqlSession.close();
        return questionList;
    }

    @Override
    public PageInfo findAll(String pageNum) {
        int page = pageNum == null || pageNum == "" ? 1 : Integer.parseInt(pageNum);
        PageHelper.startPage(page,5);
        SqlSession sqlSession = MysqlUtils.getSqlSession();
        QuestionMapper questionMapper = sqlSession.getMapper(QuestionMapper.class);
        List<Question> questionList = questionMapper.findAll();
        PageInfo pageInfo = new PageInfo(questionList);
        sqlSession.close();
        return pageInfo;
    }

    @Override
    public Question findQuestionById(String id) {
        SqlSession sqlSession = MysqlUtils.getSqlSession();
        QuestionMapper questionMapper = sqlSession.getMapper(QuestionMapper.class);
        Question question = questionMapper.findQuestionById(id);
        sqlSession.close();
        return question;
    }

    /**
     * 获取报表数据并导入到报表
     * 2021/10/18 14：02
     * created by yangyawen
     * @throws Exception
     */
    @Override
    public ByteArrayOutputStream getReport() throws Exception {

        // 获取全部数据
        SqlSession sqlSession = MysqlUtils.getSqlSession();
        QuestionMapper questionMapper = sqlSession.getMapper(QuestionMapper.class);
        List<Question> questionList = questionMapper.findAll();


        //1.获取到对应的Excel文件，工作簿文件
        Workbook wb = new XSSFWorkbook();
        //2.创建工作表
        Sheet s = wb.createSheet("题目数据文件");
        //设置通用配置
//        s.setColumnWidth(4,100);
        CellStyle cs_field = wb.createCellStyle();
        cs_field.setAlignment(HorizontalAlignment.CENTER);
        cs_field.setBorderTop(BorderStyle.THIN);
        cs_field.setBorderBottom(BorderStyle.THIN);
        cs_field.setBorderLeft(BorderStyle.THIN);
        cs_field.setBorderRight(BorderStyle.THIN);
        //制作标题
        s.addMergedRegion(new CellRangeAddress(1,1,1,12));
        Row row_1 = s.createRow(1);
        Cell cell_1_1 = row_1.createCell(1);
        cell_1_1.setCellValue("在线试题导出信息");
        //创建一个样式
        CellStyle cs_title = wb.createCellStyle();
        cs_title.setAlignment(HorizontalAlignment.CENTER);
        cs_title.setVerticalAlignment(VerticalAlignment.CENTER);
        cell_1_1.setCellStyle(cs_title);


        //制作表头
        String[] fields = {"题目ID","所属公司ID","所属目录ID","题目简介","题干描述",
                "题干配图","题目分析","题目类型","题目难度","是否经典题","题目状态","审核状态"};
        Row row_2 = s.createRow(2);
        for (int i = 0; i < fields.length; i++) {
            Cell cell_2_temp = row_2.createCell(1 + i); //++
            cell_2_temp.setCellValue(fields[i]);    //++
            cell_2_temp.setCellStyle(cs_field);
        }


        //制作数据区
        int row_index = 0;
        for (Question q : questionList) {
            int cell_index = 0;
            Row row_temp = s.createRow(3 + row_index++);

            Cell cell_data_1 = row_temp.createCell(1 + cell_index++);
            cell_data_1.setCellValue(q.getId());    //++
            cell_data_1.setCellStyle(cs_field);

            Cell cell_data_2 = row_temp.createCell(1 + cell_index++);
            cell_data_2.setCellValue(q.getCompanyId());    //++
            cell_data_2.setCellStyle(cs_field);

            Cell cell_data_3 = row_temp.createCell(1 + cell_index++);
            cell_data_3.setCellValue(q.getCatalogId());    //++
            cell_data_3.setCellStyle(cs_field);

            Cell cell_data_4 = row_temp.createCell(1 + cell_index++);
            cell_data_4.setCellValue(q.getRemark());    //++
            cell_data_4.setCellStyle(cs_field);

            Cell cell_data_5 = row_temp.createCell(1 + cell_index++);
            cell_data_5.setCellValue(q.getSubject());    //++
            cell_data_5.setCellStyle(cs_field);

            Cell cell_data_6 = row_temp.createCell(1 + cell_index++);
            cell_data_6.setCellValue(q.getPicture());    //++
            cell_data_6.setCellStyle(cs_field);

            Cell cell_data_7 = row_temp.createCell(1 + cell_index++);
            cell_data_7.setCellValue(q.getAnalysis());    //++
            cell_data_7.setCellStyle(cs_field);

            Cell cell_data_8 = row_temp.createCell(1 + cell_index++);
            cell_data_8.setCellValue(q.getType());    //++
            cell_data_8.setCellStyle(cs_field);

            Cell cell_data_9 = row_temp.createCell(1 + cell_index++);
            cell_data_9.setCellValue(q.getDifficulty());    //++
            cell_data_9.setCellStyle(cs_field);

            Cell cell_data_10 = row_temp.createCell(1 + cell_index++);
            cell_data_10.setCellValue(q.getIsClassic());    //++
            cell_data_10.setCellStyle(cs_field);

            Cell cell_data_11 = row_temp.createCell(1 + cell_index++);
            cell_data_11.setCellValue(q.getState());    //++
            cell_data_11.setCellStyle(cs_field);

            Cell cell_data_12 = row_temp.createCell(1 + cell_index++);
            cell_data_12.setCellValue(q.getReviewStatus());    //++
            cell_data_12.setCellStyle(cs_field);
        }


        //将内存中的workbook数据写入到流中
        ByteArrayOutputStream os = new ByteArrayOutputStream();
        wb.write(os);
        wb.close();
        return os;
    }

    /**
     * 审核
     * @param
     */
    @Override
    public void toExamine(String id) {
        SqlSession sqlSession = MysqlUtils.getSqlSession();
        QuestionMapper questionMapper = sqlSession.getMapper(QuestionMapper.class);
        questionMapper.toExamine(id);
        sqlSession.close();
    }
}
